<?php
namespace app\home\model;
use think\Model;
use think\Db;  

class Student extends model
{
    protected $autoWriteTimestamp = 'datetime';
    protected $error = '';
    protected function initialize()
    {
        //需要调用`Model`的`initialize`方法
        parent::initialize();
        //TODO:自定义的初始化
    }
}
